Author Topic: crackling master pot?  (Read 1064 times)

Offline JPbass

  • Full Member
  • ***
  • Posts: 148
    • http://www.myspace.com/johnpaulperic
crackling master pot?
« on: December 24, 2006, 05:43:41 AM »
hi, my master pot is crackling. I have the magic spray, just curious as to where i spray it on the pot to clean it. Do i open the unit and spray on the back of the pot or do i just take off the knob and spray some on the front part?

Cheers
WT405, D210xlt(4), D112XLT(8)

Offline keith_h

  • Hero Member
  • *****
  • Posts: 503
crackling master pot?
« Reply #1 on: December 24, 2006, 07:51:48 AM »
John,
You will need to open the case and spray the pot from inside the amp. Assuming it is not a sealed pot (my Nav is unsealed) you should see some openings around the edge of the pot. Spray through these openings while turning the pot back and forth through it's complete range. Do this several times and the pot should be as clean as it will get. If you still have crackling after this it is time to replace the pot.
 
Keith
WP100 QSC PLX3002 Bag End D10BX-D and D10B-D Bag End S18E-C ELF subwoofer system

Offline RockNRollAl

  • Hero Member
  • *****
  • Posts: 4586
crackling master pot?
« Reply #2 on: December 24, 2006, 11:35:09 AM »
Take the seeds out! Oh sorry, wrong pot. [:D]


www.RockNRollAl.com

Eden/Nemesis N28S -  NC210P - NSP210 - Eden D210XST - EM5's
I'm not a bassist. I'm just a guitarist/singer who uses Eden gear!
Nemesis N28S -  NC210P - NSP210(8Ω) - NSP210(4Ω)
Eden WT1205 -  WT405 - WTX260 - CXC110(WT390 head) - CX110
D410XLT(8Ω) - D210XST(8Ω)(x2) - D210XST(4Ω)(x3) - EM5's(x2) - WTDI
Roscoe LG3005 - Gretsch G2220 - Rogue VB100 - Ibanez GSRM20

Offline LaneOnBass

  • Hero Member
  • *****
  • Posts: 9175
    • My Web Site
crackling master pot?
« Reply #3 on: December 24, 2006, 11:39:41 AM »
Removing the seeds also prevents pin-hole burns on your favorite satin shirt.

But... you knew that already, didn't you?

And, John, Keith nailed it on the head. Let us know how it turns out...

Keep Thumpin',

Lane Baldwin
Special Projects Coordinator
and Forum Moderator


Ask not what bass can do for you...
   Ask what YOU can do for bass.

www.laneonbass.com
Keep Thumpin',

Lane On Bass

Former Eden Spec. Proj. Coord. & Artist Relations

My Web Site | Facebook Page
Twitter

Offline tfcreative

  • Hero Member
  • *****
  • Posts: 4584
crackling master pot?
« Reply #4 on: December 24, 2006, 12:45:12 PM »
Wouldn't that be a hemp shirt?

Todd
Tobias Classic V - Mike Tobias rocks the House
DC112XLT (390)
D112XLT
Todd
Tobias Classic V
Frankenstein Project 5-string

Offline Rick Auricchio

  • Hero Member
  • *****
  • Posts: 733
    • http://www.cfcl.com/rick
crackling master pot?
« Reply #5 on: December 24, 2006, 04:28:08 PM »
One shot of the spray should do the trick. No need to overdo that.

Yesterday, I cleaned all the pots in a friend's Walter Woods amp. They were really noisy.

He had come over to compare his unknown 15" system vs. my 112XLT. We even threw my old Peavey Minx 110 amp into the mix. He liked the 112, and I agree: its midrange sounds good on the upright.

He's gonna borrow the 112 for a New Years Eve gig on upright.

Frets: '65 stock Precision, '94 Dave Maize ABG;
Fretless: '91 Pedulla Buzz, '95 PV Foundation, '02 Warwick Corvette, '94 Maize ABG, '03 Lightwave Saber C
Amp: Eden WT550B, D112XLT & '92 D210T (front port, silver tweeter)
« Last Edit: December 24, 2006, 04:30:19 PM by Rick Auricchio »
Frets: '65 stock Precision, '02 MM Stingray, '09 MM Big Al
Fretless: '91 Pedulla Buzz, '94 Maize ABG, '95 PV Foundation, '02 Warwick Corvette, '03 Lightwave Saber C
Amps: WTX260, TC RH450,  RS112 (x2) & BFM omni15TB

Offline LaneOnBass

  • Hero Member
  • *****
  • Posts: 9175
    • My Web Site
crackling master pot?
« Reply #6 on: December 25, 2006, 09:42:16 AM »
The reference is to a song from Pink Floyd's The Wall, called Nobody Home:

I got the obligatory Hendrix perm,
And the inevitable pinhole burns,
All down the front of my favorite satin shirt.

And I *know* Al remembers that one. All us Old Guys do, don't you know...

Keep Thumpin',

Lane Baldwin
Special Projects Coordinator
and Forum Moderator


Ask not what bass can do for you...
   Ask what YOU can do for bass.

www.laneonbass.com
Keep Thumpin',

Lane On Bass

Former Eden Spec. Proj. Coord. & Artist Relations

My Web Site | Facebook Page
Twitter

Offline Rick Auricchio

  • Hero Member
  • *****
  • Posts: 733
    • http://www.cfcl.com/rick
crackling master pot?
« Reply #7 on: December 25, 2006, 11:59:53 AM »
I got the "satin shirt" reference too, but I'm old too. (55)

Frets: '65 stock Precision, '94 Dave Maize ABG;
Fretless: '91 Pedulla Buzz, '95 PV Foundation, '02 Warwick Corvette, '94 Maize ABG, '03 Lightwave Saber C
Amp: Eden WT550B, D112XLT & '92 D210T (front port, silver tweeter)
Frets: '65 stock Precision, '02 MM Stingray, '09 MM Big Al
Fretless: '91 Pedulla Buzz, '94 Maize ABG, '95 PV Foundation, '02 Warwick Corvette, '03 Lightwave Saber C
Amps: WTX260, TC RH450,  RS112 (x2) & BFM omni15TB

Offline LaneOnBass

  • Hero Member
  • *****
  • Posts: 9175
    • My Web Site
crackling master pot?
« Reply #8 on: December 26, 2006, 10:15:59 AM »
See? See?!? Told ya...

[:D]

Keep Thumpin',

Lane Baldwin
Special Projects Coordinator
and Forum Moderator


Ask not what bass can do for you...
   Ask what YOU can do for bass.

www.laneonbass.com
Keep Thumpin',

Lane On Bass

Former Eden Spec. Proj. Coord. & Artist Relations

My Web Site | Facebook Page
Twitter

Offline JPbass

  • Full Member
  • ***
  • Posts: 148
    • http://www.myspace.com/johnpaulperic
crackling master pot?
« Reply #9 on: December 26, 2006, 10:06:04 PM »
hi guys, well the magic spray hasnt worked. I tried it on two seperate occassions and the scratchy pot is still, well scratchy. I guess i'll need a new master post. It doesnt really bother me though seeming its on scratchy when a note is played and then turning, so as long as im not playing anything when im turning the knob it wont be scratchy

JP

WT405, D210xlt(4), D112XLT(8)

Offline keith_h

  • Hero Member
  • *****
  • Posts: 503
crackling master pot?
« Reply #10 on: December 27, 2006, 06:45:07 AM »
JP,
Sorry to hear the cleaning didn't work. Replacing the pot is pretty straight forward. It shouldn't take more than an hour to do. The biggest hassle is removing all of the knobs and nuts from the controls on the front panel so you can get to the underside of the board to de-solder the old pot and solder in the new pot. Of course this is not near as bad as my old Tapco RB6100 mixer where it seemed to take days to replace a pot.  
 
Keith
WP100 QSC PLX3002 Bag End D10BX-D and D10B-D Bag End S18E-C ELF subwoofer system

Offline JPbass

  • Full Member
  • ***
  • Posts: 148
    • http://www.myspace.com/johnpaulperic
crackling master pot?
« Reply #11 on: December 28, 2006, 05:51:52 AM »
yeh it does seems like a little hassle to removing all the pots from the front then de-soldering and replacing the pot that needs to be replaced. I guess il see if i can live with it, if not il need to replace it. Where do i get the pot from? can i use a pot from an electronic store as long as its the same type of pot?

cheers
WT405, D210xlt(4), D112XLT(8)

Offline keith_h

  • Hero Member
  • *****
  • Posts: 503
crackling master pot?
« Reply #12 on: December 28, 2006, 07:53:14 AM »
I ordered mine directly from Eden Customer Service.
 
Keith
WP100 QSC PLX3002 Bag End D10BX-D and D10B-D Bag End S18E-C ELF subwoofer system

Offline tceddia

  • Newbie
  • *
  • Posts: 54
crackling master pot?
« Reply #13 on: December 31, 2006, 11:16:37 PM »
quote:
Originally posted by JPbass

hi guys, well the magic spray hasnt worked. I tried it on two seperate occassions and the scratchy pot is still, well scratchy. I guess i'll need a new master post. It doesnt really bother me though seeming its on scratchy when a note is played and then turning, so as long as im not playing anything when im turning the knob it wont be scratchy

JP





My master pot has done this since day 1. I discussed this on the forum and several other members mentioned similar experiences. The scratchy sound is heard only if a note is being played and is totally silent otherwise.
Eden WT550
Eden 210xlt
Eden 112xlt
Ampeg B100R
2004 Lakland Skyline Joe Osborn
1976 Fender Precision
DOD Preamp Overdrive/250
Guyatone BR2 envelope filter
Fender flats and DR lowriders

Offline Brim

  • Hero Member
  • *****
  • Posts: 657
    • http://www.myspace.com/xavjr
crackling master pot?
« Reply #14 on: January 01, 2007, 05:39:18 PM »
My master pot scratches only when I turn it, never when I play (on my store-demo ebay-bought WT550B). I've been too lazy to order some Craig's DeOxit and spray some in there. Maybe I should. I'll post my findings when I get it done.
............................
living in grace